H identification for robust control

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


In this paper, the role that frequency domain, model identification performs in the controller design for single input, single output systems is developed. H control design methods can guarantee the stability of a closed loop system with the plant only partially known provided the controlled, nominal plant as well as the uncertainty are stable and the frequency response of the plant uncertainty can be bounded. The nominal performance of such a closed loop system is critically dependent on the class of uncertainty that must be designed for, as well as the actual (but often unknown) accuracy of the model. Thus it is a primary aim of this paper to address conservatism in the modelling error bounds in order to enhance the ultimate performance of the controlled plant. The techniques for experiment design, frequency response estimation, model identification, estimation of priors and bound calculation that are developed are demonstrated in the case study which identified a model and bound for the vertical plasma dynamics of a tokamak fusion reactor.

Original languageEnglish
Pages (from-to)2040-2044
Number of pages5
JournalProceedings of the American Control Conference
Publication statusPublished - 1994
Externally publishedYes
EventProceedings of the 1994 American Control Conference. Part 1 (of 3) - Baltimore, MD, USA
Duration: 29 Jun 19941 Jul 1994

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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